Condensing-pump.



l PATENTED SEPT. 17, 1907.

c. E. LBGGETT.

ooNnENsING PUMP.

APPLICATION FILED DBG. 7, 1905.

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No. 888,288. PATBNTED SEPT. 17, 1907. o. E. LPGGPPT.

GONDENSING PUMP.

APPLICATION FILED DE. f7. 1905.

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PATENTED SEPT. 17, 1907.

C. E. LEGGETT. UO-NDENSING PUMP.

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UNITED STATES PATENT Von'lnon.

CI-IARLES E. LEGGETT, OF EL CAMPO, TEXAS, ASSIGNOR TO THE LEGGETT PUMP COMPANY, OF JOPLIN, MISSOURI, A CORPORATION OF MISSOURI.

CONDENSING-PUMP.

To all whom it may concern;

Be it known that I, CHARLES E. LEGGETT, a citizen ol the United States, residing at El Campo, in'the county of Wharton and State oi Texas, have invented 4through the inlet port into the condensing chamber and afterwards expelled therefrom through a discharge port by means oi a fresh supply of steam admitted into the condensing chamber. l

My invention provides a novel arrangement of valves and valve actuating mechanisms hereinafter fully described and claimed.

My invention provides further, adjustable means for regulating the speed of operation of the pump.

The peculiarities and novel features oi my invention are hereinaiter ully described and claimed.

In the accompanying drawings illustrating my invention-Figure l. is a central vertical sectional view. Fig. 2 is a vertical sectional view, taken on the dotted line o-p oi Fig. 3. Fig. 3 is a central, vertical, sectional view, taken on the dotted line qr oi Fig. 2. Fig. 4 is a horizontal sectional view, taken on the dotted line a-b of Fig. 3. Fig. 5 is a cross section, taken on the dotted line g-h oi Fig. 3. Fig. G is an enlarged vertical sectional view of the dash pot and parts connected therewith. Fig. 7 is a side elevation view of the dash pot. Fig. 8 is a vertical sectional view taken on the dotted linee-f of Fig. 3. Fig. 9 is a cross section taken on the dotted line 'nt-n of Fig. 3. Fig. 10 is a vertical section taken on the dotted line i-j of Fig. 7. Fig. 11 is a vertical section taken on the dot* ted line c-Z of Fig. 7. Fig. 12 is a perspective view oi the oscillatory, auxiliary valve. Fig. 13 is a side elevation view of; the sleeve in which the auxiliary valve is mounted. Fig. 14 is a top viewot the main valve.

Similar characters oi reference denote similar parts.

l denotes the vertical condensing chamber provided in its lower end with an inlet port 2, normally closed by a check valve 3, oi any ordinary type.

4 denotes the outlet port, provided in the side oi the chamber` adjacent its lower end, and normally closed by an ordinary check valve 5. The port 4 discharges into a verticaldischarge pipe 6, to which is connected, .above the valve 5, one end oi a conductor 7, the other Specification of Letters-Patent.

Application filed December 7,1905.

Patented Sept. 17, 1907.`

Serial No. 290,809.

end of which extends through one side and into the chamber 1.

8 denotes an ordinary check valve or preventing outward flow through the conductor 7. ,p

9 denotes an air inlet pipe connected to the upper part of the chamber 1 and having an inwardly opening checlcvalve 10.

The following described parts comprise the means or admitting steam into the condensing chamberz The upper end of the chamber l is provided with a vertical hole in which is secured a tubular casting 1l, having a series of peripheral openings 12, disposed within the chamber 1. The upper end of the tubular casting 11 is provided with vertical ports 13, adapted to be closed by a horizontally slidable valve 14, provided with two ports 15 adapted to register with the ports 13, said valve 14 being the main valve for controlling the admission of steam into the condensing chamber, said valve being slidably mounted in a re cess 16, provided in the under side oi a horizontal cylinder 17, in which is reciprocatively mounted a piston 18, the central portion of which is reduced in diameter so as to permit steam to pass from a steam pipe 19, secured to the upper side oi the cylinder 17, through the cylinder 17, and thence past the valve 14, through the ports 15 and 13, and tubular casting 11, into the condensing chamber 1. The main valve 14, is provided with a central vertical projection 20, the upper end ol: which is fitted to the periphery oi the reduced portion of the piston 18. When the piston 18' is reciprocated it will, by alternately striking opposite sides of the projection 20, move the valve 14 to and from the closed position.

Reciprocation oi the piston 18 is obtained in the following described mannerz-Referring particularly to Fig. 9, 21 denotes a casting secured to one side ol; the cylinder 17 and having four radially disposed ports 22, 23, 24 and 25 respectively, as shown in Fig. 8, to which are connected respectively steam Conductors 26, 27, 28 and 29. The conductor 26 is connected to the steam supply pipe 19, in which is provided a shutoff valve 30;- The conductors 27 and 29 connect respectively with two ports 31 and 32, provided in the cylinder 17 adjacent opposite ends thereof. The conductor 28 is an exhaust pipe. The casting 21 is provided with a horizontal, central round hole in which is rigidly secured a sleeve 33, which is provided with a plurality of ports 34, 35, 3G and 37, which register with the ports 22, 23, 24 and 25 respectively. An oscillatory, auxiliary valve 38, shown in Fig. 12, is mounted in the sleeve 33 and is provided-on diametrically opposite sides, adjacent one end, with two peripheral recesses 39, by means of which the steam may pass from the port 34 alternately to the ports 35 and 37, thus alternately admitting steam into the cylinder 17 at opposite ends of the piston 18. The recesses 39 also serve te alternately connect the port 36 With the ports 35 and 37, thus permitting the steam to exhaust alternately from opposite ends of the cylinder 17. In the screw threaded outer end of the casting 21 is fitted the screw threaded inner end of a plug 40 which is provided with a central opening, in which is mounted an oscillatory shalt 4l, the inner end of which is provided with a projection 42, adaptedto enter a corresponding notch in the outer end of the valve 38.

The shaft 41 is provided at the inner end of the plug 40 with a peripheral flange 43 which serves to retain the shaft in engagement with the valve 38. In the outer end of the plug 40 is a screw threaded hole in which is fitted a packing plug 44 through which the shaft 41 extends. Upon the outer end of the shaft 41 and oscillatable with the valve 38, is a lever 45, one end of which is screw threaded and has fitted thereon a longitudinally adjustable weight 46, for locking the lever 45, shaft 41, and valve 38 in a position such that the main Valve 14 and piston 18 will be moved to the positions shown in Figs. 1 and 9, in which position steam will be admitted from the steam conductor 19 through the tubular casting 11 and cylinder 17, into the condensing chamber l. For rocking the lever 45 in a direction opposite that just described, the end of said lever, 'distant from the weight 46, has pivotally connected to it the upper end of a rod 47, the lower end of which is provided with a slot 48, in which is disposed a pin 49 mounted on a crank arm 50, secured upon the outer end of a horizontal rock shaft 51, oscillatively mounted in suitable bearings provided therefor in the condensing chamber l. The rock shaft 51 within the chamber 1, is provided with a laterally extending crank arm 52, which carries a weight, preferably hollow, and denoted by 53. The weight 53 is provided adjacent its upper side with an opening 54 for admitting water or other liquid that may be pumped into the condensing chamber. The weight is provided adjacent its bottom with an opening 55, of small size, through which the liquid contained in the weight may be slowly discharged, if at any time the weight should remain non-submerged for a considerable period of time. In the crank arm 50 is secured a pin 56, to which is fastened the lower end of a coil spring 57, the upper end of which is secured to a projection 58, provided on the periphery of a collar 59, vertically adjustable upon the pipe 6 and having a set screw 60,

for'securing it rigidly upon the pipe 6 in the position to which it may be adjusted. For controlling the speed of oscillation of the auxiliary valve 38, the lever 45 has secured to it the upper end of a link 61, the lower end of which is secured to a vertical rod 62 slidably and centrally mounted so as to move vertically in the upper head of a cylindrical dash pot 63, in which is vertically and reciprocatively mounted a piston 64, secured to the lower end of the rod 62. The

dash pot 63 is preferably filled with a liquid, such as oil, vand is provided adjacent its upper and lower ends with openings in which are respectively secured two seaes pipes 65 and 66, connected respectively with the two tees G7 and 68. A conductor 69 has its upper and lower ends connected respectively to corresponding.

openings in the tees 67 and 68. A similar conductor is connected in a similar manner to the opposite openings of the tees 67 and 68, respectively. Two regulating valves 7l and 72, control the passage of oil through the conductors 69 and 70 respectively. The conductor 69 is provided with an inwardly opening check valve 73, which will permit the oil to pass downwardly, but not upwardly, through the conductor `69. An outwardly opening check valve 74 is provided in the conductor 70 and will permit upward movement only of oil through the conductor 70.

The dash pot mechanism just described provides an adjustable means for regulating the oscillation of the valve 38 and thus controlling the speed of reciprocation of the main valve 14. When the piston 64 moves upward the oil in the cylinder 63, above the piston, will pass downward through the conductor 69 and past the valves 71 and 73, into the cylinder 63 below the piston 64. When the piston 64 moves downward the oil will pass from the underside of the piston to the upper side thereof, through the pipes 65 and 66, tees 67 and 68, and conductor 70, and past the valves 72 and 74. By adjusting the valves 71 and 72, the speed of movement upwardly and downwardly of the piston 64 may be regulated to suit the circumstances. Thus when it is desired to admit steam quickly to the chamber l and have it shut off slowly therefrom, the valves 71 and 72 are adjusted so that the oil will pass quickly upwardly from below the piston 64 through the conductor 70 and more slowly from the upper side of the piston through the conductor 69 to the lower side of the piston.

In operating my invention, steam is first admitted into the conductor 19, from which it will pass past the valve 30 into the cylinder 17, thence through the ports 15 and 13, tubular casting 1 1, into the condensing chamber l. 1f at the time the chamber 1 does not contain water sufficient to submerge the hollow weight or receptacle 53, the steam is alternately admitted and shut off from the conductor 1.9, thus permitting a partial vacuum to form in the chamber l by reason of the condensation therein of the steam and causing, by atmospheric pressure, a quantity of water to enter the chamber 1A through the port 2 and past the check valve 3. When sufficient water has entered the chamber 1 to submerge the hollow weight 53, the spring 57 will cause the shaft 5l to be rocked so as to force upwardly the crank 50, thereby permitting the weight 46 to rock the shaft 41 and valve 38 to the position shown in Figs. 3 and 9, in which position the steam from the conductor 19 will pass into the conductor 26 and through the ports 22, 34, 35 and 23, into the conductor 27, and thence by means of the port 31 into the cylinder 17 thus forcing the, piston 18 to a position such that it will move the valve 14 to the open position, as shown in Fig. 1. When the valve is in this position, as already described, the steam will enter the chamber 1 and force the water in said chamber through the port 4, past the check valve 5, and into the discharge pipe 6. As the liquid is forced out of the chamber 1, the weight 53 will rock the shaft 51 to a position such that the said shaft, through the intermediacy of the crank arm 50, rod 47, lever 45 Boehse and shaft 41 will rock the valve 38 to the position indicated in dotted lines in Fig. 8, in which position the steam entering the conductor 26 will pass through the conductor 29 and port 32 into the opposite end of the cylinder 17, thus forcing the piston 18 to a position in which the main valve 14 will close the ports 13, thus shutting off steam from the chamber 1. When the pressure within the chamber 1, owing to the condensation of the steam therein, is less than the pressure within the pipe 6, the water in the pipe will be forced through the conductor 7, past the check valve 8, into the chamber l, thus hastening the condensation of thesteam in the said chamber. ,When the pressure within the chamber 1 becomes lower than the atmospheric pressure, a small amount of air will be admitted through the tube 9 past the check valve 10, thus furnishing an air cushion upon which the incoming steam may act in forcing the water from the chamber 1. The partial vacuum formed in the chamber 1, caused by the condensation of the admitted steam will permit the atmospheric pressure to again force the water through the inlet 2 into the chamber 1 and the weight 53 will again be raised, thus, as already described, causing a fresh charge of steam to enter the chamber 1. The operation just described will be repeated indeiinitely or as long as steam is supplied to the conductor 19 and the supply of water is to be had for filling the chamber 1 through the inlet 2. In applying my invention for use in mines or in deep wells the chamber 1 may be lowered into the well or mine to a point within about twenty feet ofthe surface o the water to be pumped, the lower end of the inlet 2, of course, being immersed in the water. The hollow weight 53 is provided with the small discharge opening 55 so that the water contained in the weight 53 will be discharged therefrom in the event that steam should be shut ofi from the chamber 1 for any considerable period of time. 1n such a case, after a suiilcient amount of water shall have passed through the opening 55, the coil spring 57 will have power to rock the shaft 51 so as to raise the weight 53 to the position shown in Figs. l, 2 and 3, in which position the weight 46 on the lever 45 may force the shaft 41 and valve 38 to the positions shown in Figs. 8 and 9, thus admitting steam into the cylinder 1.7, through the conductor 27 and forcing the piston 18, and valve 14 to the position shown in Fig. 9 and Fig. 1, in which position steam may be made to again enter the chamber 1.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is:-

1. The combination with the condensing chamber having inlet and outlet ports for the admission and discharge of water, ot valves controlling said ports respectively, means for supplying steam to the condensing chamber, a lnain valve controlling said steam supply means,,an auxiliary steam supply means by which the main valve is moved to and from the closed position, an auxiliary valve controlling the auxiliary steam supply means, a rock shaft, means connected with the rock shaft for positioning the auxiliary valve so that the auxiliary supply means will move the main valve to the closed position when the rock shaft is rocked in one direction, gravity actuated means controlled by theV entrance ot water in the condensing chamber for rocking the rock shaft in the said direction, means operative when the rock shaft is rocked in the opposite direction for positioning the auxiliary valve so that the auxiliary steam supply means will move the main valve to the open position, means for controlling the speed of movement from one position to the other of the auxiliary valve and independent means for controlling the reverse movement of the auxiliary valve,

2. The combination with the condensing chamber having inlet and outlet ports for the admission and discharge of water, of valves controlling respectively said ports, means for supplying steam to the condensing chamber, a main valve controlling said steam supply means, an auxiliary steam supply means by means of which the main valve is moved to and from the closed position, an oscillatory auxiliary valve controlling the auxiliary steam supply means, a rock shaft, means connected with the rockshaftv for swinging the oscillatory valve to a position in which the auxiliary steam supply means will move the main valve to the closed position when the rock shaft is rocked in one direction, gravity actuated means controlled by the entrance of Water in the condensing chamber for rocking the rock shaft in the said direction, means operative when the shaft is rocked in the opposite direction for swinging the oscillatory valve to a position such that the auxiliary steam supply means will move the main valve to the open position, means for controlling the oscillation in one direction ot' said oscillatory valve, and independent means for controlling the oscillation in the other direction of said oscillatory valve.

3. The combination with the condensing chamber having inlet and outlet ports for the admission and dischargcot Water, of valves controlling said ports respectively, means for supplying steam to the condensing chamber, a main valve controlling said steam supply means, an auxiliary steam supply means by means of which the main valve is moved to and from the closed position, an auxiliary valve controlling the auxiliary steam supply means,l means controlled by the' admission to and discharge of Water from the condensing chamber for positioning the auxiliary valve so that the auxiliary steam supply means will move the main valve to the open and closed positions respectively, means for controlling the movement of the auxiliary valve from one position to the other and independent means for controlling the reverse movement of the auxiliary valve.

4. The combination with the condensing chamber having inlet and outlet ports foi-,the admission and discharge of water, of valves controlling said ports respectively, means for supplying steam to the condensing chamber, a main valve controlling said steam supply means, an auxiliary steam supply means by means of which the main valve is alternately moved to and from the closed position, an oscillatory auxiliary valve controllingr the auxiliary steam supply means, means controlled by the admission to and discharge of water from the condensing chamber for oscillatin?,` said auxiliary valve, means for controlling the oscillation in one direction of the oscillatory valve, and independent means for controlling the oscillation in the opposite direction of said oscillatory valve.

5. '.lhe combination with the condensing chamber having inlet and outlet ports tor the admission and discharge ot' Water, otgvalves controlling said ports respectively, means for supplying steam to the condensing chamber, a main valve controlling said steam supply means, an auxiliary steam supply means by means of which the main Valve is alternately moved to and from the closed position, an oscillatory auxiliary valve controlling the auxiliary steam supply means, a lever oscillatable with said oscillatory valve, means for swinging said lever i11 one direction, means controlled by the admission to and discharge of water from the condensing chamber for swinging said lever in the opposite direction, means for controlling the oscillation in one direction of said lever, and independent means for controlling the movement of' said lever inthe opposite direction. i

G. lhe combination with the condensing chamber having inlet and outlet ports for the admission and discharge of water, of valves controlling said ports respectively, means for supplying steam to the condensing chamber, a main valve controlling said steam supply means, an auxiliary steam supply means by means of which the lnain valve is `alternately moved to and from the closed position, an

oscillatory auxiliary valve controlling the auxiliary steam supply means, a lever oscillatable with said auxiliary valve, a weight for swinging said lever and said auxiliary valve to a position such that the auxiliary steam supply means will move the main valve to the open position, means controlled by the admission of water into the condensing chamber for swinging said leveil and auxiliary valve to a position such thatvthe auxiliary steam supply means will move the lnain valve to the closed position, means for controlling the oscillation in one direction of said lever and auxiliary valve, and independent means for controlling the oscillation in the other direction of said lever and auxiliary valve.

7. The combination with the condensing chamber having inlet and outlet ports for the admission and discharge of water, of valves controlling said ports respectively, means for supplying steam to the condensing chamber, means for shutting off the supply of steam through said steam supply means and controlled by the discharge of water from said condensing chamber, means controlled hy the admission of water into the condensing chamber for permitting the discharge of steam into the condensing chamber through said steam supply means, adjustable means for regulating the time required for admitting steam to the condensing chamber by way of said steam supply means, and independent adjustable means for regulating the time in which the steam is shut olf from entrance into the condensing chamber.

S. ',lhe combination with the condensing chamber having inlet and outlet ports for the admission and discharge of water, of valves controllingl said ports respectively, means for supplying steam to the condensing chamber, a valve for controlling the said steam supply means, a rock shaft, means controlled by the admission of water into the chamber for rocking said shaft in one direction, means by which, when said shaft is rocked in the said direction, the valve is moved to the open position, means by which the valve is moved to the closed position when the water is discharged from the condensing chamber and the rock shaft is rocked in the opposite direction, and means by which movement of said valve to each position is independently controlled.

E). '.lhe combination with the condensingr chamber having inlet and outlet ports for the admission and discharge of water, of valves controlling said ports respectively, means for supplying steam to the condensing chamber, a valve controlling said steam supply means, a rock shaft, means controlled by the admission of water into the chamber for rocking said shaft in one direction, means by which, when the shaft is rocked inthe said direction, the valve is moved to the open position, means for moving the valve to the closed position controlled by the discharge of water from the chamber, and adjustable means for' timing the movement of said valve in one direction, and independent adjustable means for timing the movement of said valve in the opposite direction.

10. The combination with the condensing chamber having inlet and outlet ports for the admission and discharge of water, of valves controlling said ports respectively, means l'or supplying steam to the condensing chamber, a valve controlling said steam supply means, a receptacle in said chamber havingl an opening for the admission of water and having adjacent the bottom a discharge opening, means by which, when water enters the chamber, the receptacle will be raised, means by which, when the receptacle is raised, the valve will be moved to the open position and means by which, when the water is d ischarged from the chamber, the receptacle will lower and the valve will be moved to the closed position.

11. The combination with the condensing chamber having inlet and outlet ports for the admission and discharge of water, of valves controlling said ports respectively, means for supplying steam to the condensing chamber, a valve controlling said steam supply means, a receptacle in said chamber having an opening for the admission of water and having a discharge opening adjacent the bottom, means by which, when the watel' enters said chamber, the receptacle will be raised and the valve moved to the open position. means by which, when the water is discharged from the chamber, the receptacle will lower and the valve will be moved tothe closed position, and adjustable means for regulating the time of movement of said valve to and from the closed position.

12. The combination with the condensing chamber having inlet and outlet ports for the admission and discharge of water, of valves controlling said ports respectively, means for supplying steam to the condensing chamber, a valve controlling said steam supply means, a rock shaft having a crank arm, a receptacle carried by said crank arm having an opening for admitting water and having a discharge opening adjacent the bottom, said receptacle being movable upward by the water entering the chamber, means by which, when the receptacle is upwardly moved, the valve will be moved to the open position, and means by which, when the water is discharged from the chamber', the receptacle will lower and the valve will be moved to the closed position.

13. The combination with the condensing chamber having inlet and outlet ports for the admission and discharge of water, of valves controlling said ports respectively, means for supplying steam to the condensing chamber, a valve controlling said steam supply means, a rock shaft having a crank arm, a receptacle carried by said crank arm having an opening for admitting water and having a discharge opening adjacent the bottom, said receptacle being movable upward by the water entering the'chamber thus rocking the rock shaft, means by which, when the rock shaft 'is thus rocked, the valve will be moved to the open position, means by which, when the water is discharged from the chamber, the receptacle .will lower and the shaft be rocked in the opposite direction, means by which, when said shaft is rocked in the opposite direction, the valve will be moved to the closed position, and adjustable means for regulating the time of opening and closing said valve.

1-1. The combination with the condensing chamber having inlet and outlet ports for the admission and discharge of a liquid, of means for supplying steam to the condensing chamber, a rock shaft having a lateral arm carrying a hollow weight provided with an Opening for admitting liquid and located in the chamber which weight rocks the shaft in one direction when the liquid is discharged from the chamber, means for rocking the shaft in the opposite direction when said weight is submerged, and means controlling the steam supply means for alternately admitting to and shutting off steam from the chamber, when the rock shaft is oscillated.

15. The combination with the condensing chamber having inlet and outlet ports for the admission and discharge of a liquid, of, means for supplying steam to the condensing chamber, means controlling the steam supply means, adjustable means for retarding the operation of the steam controlling means, a rock shaft having a lateral arm carrying a hollow weight provided with an opening for admitting liquid and located in the chamber, which weight rocks the shaft in one direction when the liquid is discharged from the chamber, means for rocking the roch shaft in the opposite direction when the weight is submerged, and means actuating the steam controlling means when the rock shaft is oscillated.

16. The colnbination with the condensing chamber having inlet and outlet ports for admitting and discharging liquid, of means for supplying steam to the chamber, a main valve controlling the steam supply means, an auxiliary steam supply means for opening and closing the main valve, an auxiliary valve controlling the auxiliary steam supply means, a hollow weight located in the chamber and having an inlet for liquid and an outlet adjacent the bottom, lneans controlled by the downward movelnent of the weight for moving the auxiliary valve in one direc- `tion, means controlled by said weight for moving the auxan oscillatory auxiliary valve controlling the auxiliary steam supply means, a rock shaft having an arm carrying a hollow weight provided with an opening,r for admitting liquid and located in the chamber and movable upward by the entrance of liquid in the chamber, means for rocking the shaft in a direction opposite that in which it is rocked by the downward movement of the Weight, said rocking means becoming operative when the weight is submerged, means by Which the auxiliary valve is rocked in one direction when the weight moves downward in the chamber, 10 and means by which when the weight is upwardly moved the auxiliary valve is rocked in the opposite direction.

In testimony whereof I aflix my signature, in presence of two subscribing Witnesses.

CHARLES E. LEGGETT.

Witnesses:

WARREN D. HOUSE, ALONZO B. BoYLAN. 

